Multi-function vehicle taillight system with unitary optic

• US 6,102,559 A
• Filed: 01/25/1999
• Issued: 08/15/2000
• Est. Priority Date: 01/25/1999
• Status: Expired due to Term

• Current Assignee: Varroc Lighting Systems S.R.O. (Varroc Engineering Limited)
• Original Assignee: Ford Motor Company
• Inventors: O'Neil, David Allen, Nold, Jeffrey Paul, Fohl, Timothy
• Primary Examiner(s): O'Shea, Sandra
• Assistant Examiner(s): WARD, JOHN A
• Application Number:
  US09/237,592
• Time in Patent Office: 568 Days
• Field of Search: 362/511, 362/540, 362/541, 362/555, 340/468, 340/815.42, 340/31
• US Class Current: 362/558
• CPC Class Codes: B60Q 1/0011 with light guides for distributing the light between several lighting or signalling devices
• CPC Class Codes: B60Q 1/2607 comprising at least two indicating lamps
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/237 rod-shaped
• CPC Class Codes: F21S 43/245 emitting light from one or more of its major surfaces
• CPC Class Codes: F21S 43/247 with a single light source being coupled into the light guide
• CPC Class Codes: G02B 6/002 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
• CPC Class Codes: G02B 6/0048 with stepwise taper
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources

Abstract

A taillight system for an automotive vehicle has an optic manifold mounted in a assembly defining a light emitting area, a first light source configured to provide illumination through the light emitting area, and a second light source configured to provide illumination through a predetermined portion of the light emitting area. The system has an illumination mode in which the first light source provides illumination of a first intensity in a first wavelength range through the light emitting area, a brake mode in which the first light source provides illumination of a second intensity in the first wavelength range through the light emitting area, and a backup mode in which the second light source provides illumination in a second wavelength range through the predetermined portion of the light emitting area, with or without the first light source providing illumination through the light emitting area, the second wavelength range including the first wavelength range.

Claims

1. A taillight system for an automotive vehicle, comprising:

a assembly adapted for attachment to the vehicle;

an optic manifold mounted within the assembly and having a front surface defining a light emitting area, an input section on an end of the optic manifold, for receiving and dispersing light from a first light source generally parallel to the front surface in a general predetermined direction, and a back surface having a plurality of facets generally spaced apart in the general predetermined direction for redirecting light from the first light source through the front surface so as to provide illumination through the light emitting area;

a second light source configured to provide illumination through a predetermined portion of the light illuminating area; and

wherein the system has;

an illumination mode in which the first light source provides illumination of a first intensity in a first wavelength range through the light emitting area;

a brake mode in which the first light source provides illumination of a second intensity in the first wavelength range through the light emitting area;

a backup mode in which the second light source provides illumination in a second wavelength range through the at least one predetermined portion of the light emitting area, with or without the first light source providing illumination through the light emitting area, the second wavelength range including the first wavelength range; and

an off mode in which neither the first nor second light sources provide illumination.

2. The taillight system of claim 1 wherein the first light source is located on the vehicle at a location outside the assembly.

3. The taillight system of claim 2 wherein the first light source comprises at least one a diode laser.

4. The taillight system of claim 1 wherein the second light source comprises at least one light emitting diode (LED).

5. The taillight system of claim 1 wherein the second light source comprises a bank of light emitting diodes (LEDs) mounted adjacent the rear surface of the optic manifold.

6. The taillight system of claim 1 wherein the second wavelength range includes comprising white light.

7. The taillight system of claim 1 wherein the second wavelength range includes comprising the visible spectrum.

8. The taillight system of claim 1 wherein the input section comprises a semi-cylindrical member integral with the optic manifold.

9. A taillight system for an automotive vehicle, comprising:

a assembly adapted for attachment to the vehicle;

an optic manifold mounted within the assembly and having a front surface defining a light emitting area, an input section on an end of the optic manifold for receiving and dispersing light from a first light source generally parallel to the front surface in a general predetermined direction, and a back surface having a plurality of facets spaced apart in the general predetermined direction for redirecting light from the first light source through the front surface so as to provide illumination through the light emitting area;

a second light source configured to provide illumination through a predetermined portion of the light emitting area;

wherein the system has;

an illumination mode in which the first light source provides illumination of a first intensity in a first wavelength range through the light emitting area;

a brake mode in which the first light source provides illumination of a second intensity in the first wavelength range through the light emitting area;

a backup mode in which the second light source provides illumination in a second wavelength range including white light through the at least one predetermined portion of the light emitting area, the second wavelength range including the first wavelength range; and

an off mode in which neither the first nor second light sources provide illumination; and

wherein light of the second wavelength range is emitted from the predetermined portion of the light emitting area when the system is in the backup mode, with or without the first light source providing illumination through the light emitting area, since the first wavelength range is contained in the second wavelength range.

10. The taillight system of claim 9 wherein the first light source is located in the vehicle at a location remote from the assembly.

11. The taillight system of claim 10 wherein the first light source comprises at least one a diode laser.

12. The taillight system of claim 9 wherein the second light source comprises a bank of light emitting diodes (LEDs) mounted adjacent the rear surface of the optic manifold.

13. The taillight system of claim 9 wherein the input section comprises a semicylindrical member integral with the optic manifold.

14. The taillight system of claim 9 wherein the optic manifold is made of a transparent acrylic material.